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同样消失的电波:马航失联与法航空难异同点

2014-03-12 11:53:15   中国新闻网

据参考消息3月12日报道【法新社巴黎3月10日电】今天,在雷达屏幕上消失已经三天的马来西亚航空公司MH370航班仍然下落不明。人们把这次事件与2009年法国航空公司AF447航班坠毁一事进行对比,以下是几大相同点和不同点。

相同点:

--搜救展开三天后仍然下落不明。人们在法航飞机失踪近两年后才确定它的位置。飞机坠毁后一周仅有尾部的几块残骸被发现。

--巡航。两架航班当时都位于海上,并且都在巡航高度飞行。

--机上人员数量。马航航班上有239人,法航航班上有228人,它们都包括12名机组人员。

--安全状况。马航的这架波音777-200飞机与法航的空客A330飞机都有优异的安全纪录。

--没有发出求救信号。航空业专家说,这并不意外,因为在突然发生技术问题时,机组的首要任务是找到解决办法。

--维修。两架航班都曾在地面上轻微受损,并接受了修理。已经认定法航447航班曾经受到的损伤与坠毁无关。

不同点:

--飞机通信寻址与报告系统(ACARS)。法航班机通过该系统在4分钟内自动发出了24条报告技术“事件”

的信息。马航班机上装有该系统,但马航方面尚未表示是否收到了该系统发出的任何信息。

--巡航段。两架飞机在失踪时都处在巡航状态,但是马航班机当时刚刚开始巡航,这意味着机长很可能仍在控制飞机。而法航班机机长当时正在休息,一直至飞机下坠前片刻才返回驾驶舱。

--天气。马航航班行进路线上的天气条件似乎很好,法航航班则遭遇了强气流。

--雷达。马航航班是在空中交通忙碌的区域失踪的,很可能受到了很好的监控,因为它与几个国家的距离都很近。而从里约热内卢飞往巴黎的法航航班是在大西洋坠毁的,不在雷达探测范围内。

--残骸回收。法航班机坠入了离海岸较远的很深的水域,从而使调查难上加难。

--主管调查部门。

法航班机是在国际水域坠毁的,从而使法国调查人员可以牵头调查。而鉴于马航MH370航班尚未被定位,目前仍不清楚应该由马来西亚、越南还是其他方面主管调查工作。

相关信息:找到黑匣子的时间需要多久?

空军试飞专家徐勇凌曾在公开场合表示,马航失联航班的现有搜索海域比法航447空难时的搜索面积小太多,只是后者的1/10。 且大西洋海域极深,2011年飞机残骸发现地水深平均达4000米。大西洋常年风浪,法方多次搜救,总耗资超过3200万欧元。有关专家称,这次马航搜救海域共32万平方公里, 平均水深48-87米,甚至可以动用潜水员下水搜救。和法航447当年动用的搜救力量相比,但马航事件出动搜救队伍的国家更多,投入军舰、飞机力量雄厚。

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